Sizhong Zhou and  Hongxia Liu,  On Fractional (k,m)-Deleted Graphs with Constrains Conditions.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2011, vol. 55(7). 1081 - 1083
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/3345.